<?php

class Greendizer_Module_Model_Entity_Setup extends Mage_Sales_Model_Entity_Setup
{
    public function getDefaultEntities()
    {
        $default_entities = parent::getDefaultEntities();
        $default_entities['invoice']['attributes']['sent_to_greendizer'] = array(
            'type' 				=> 'boolean',
            'default'			=> false,
            'label'     		=> 'Sent to Greendizer',
            'comment'			=> 'Sent to Greendizer',
        );

        return $default_entities;
    }
}

?>
